I have got the same connection error.
So its not your setup.

If the board is not programmed by using compile to target while the mass storage drive appears, then until all sorted, for now just use Compile to hex and drop the hex file in to the mass storage drive created on your PC.

At least now you can compile OK.
Sorry, I don't have a Curiosity Nano pic18f47k42, so I might not be able to help.
When you plug the board in does the drive (mass storage drive) appear on your PC?
If not then what about if you hold the button down then connect to USB?
It's only when the folder ...

Hi.
I believe I have spotted the issue.
Ben would need to supply the official corrected file.
In the mean time If you browse to this location using File Explorer, it's hidden by default so just paste the link into your address bar.
%ProgramData%\MatrixTSL\FlowcodeV11\FCD\PIC\
Replace the original ...

Thank you for the files.
That's odd the curiosity_nano1.msg.txt is not showing the information within your screenshot.
Can you recompile then open your curiosity_nano1.msg.txt file and make sure it contain compiler messages including the error/s
If it does, can you attach it again.

That is great that Flowcode can access the internat.
Its very difficult to see what the error is from images.
Whenever you have an error, can you attach the following files that are all within your project folder. Project name.fcfx, Project Name.msg.txt & Project Name.fcxlog
If you do install a ...

That error is because for some reason Flowcode is unable to connect to the internet.
That is the reason Library Updates icon is greyed out.
Try File > Global Settings...
Within Application tab, check that Web Access is enabled along with default settings.
The address is your router and port is 80 ...

You're welcome.
Unable to view image.
Can you try attaching it again.

Hello.
Have you tried Help > Library Updates...
Change Files in-use to Full database
After updating is complete, you will need to reload your project.

Thanks Ben.
I could have named the variable the same as in the component and used CopyValue api but just stuck to what I have used before
Personally I do like it as you get a visual warning, so I say go for it